Zahra Heidari, Amir Tajbakhsh, Seyed Mohammad Gheibi-Hayat, Afagh Moattari, Vahid Razban, Aydin Berenjian, Amir Savardashtaki* and Manica Negahdaripour *
Background: Viral respiratory infections could result in perturbation of the gut microbiota due to a probable cross-talk between lungs and gut microbiota. This can affect the pulmonary health and the gastrointestinal system.
Objective: This review aimed to discuss the impact of probiotics/ prebiotics and supplements on the prevention and treatment of respiratory infections, especially emerging pathogens.
Methods: The data were searched were searched in PubMed, Scopus, Google Scholar, Google Patents, and The Lens-Patent using keywords of probiotics and viral respiratory infections in the title, abstract, and keywords.
Result: Probiotics consumption could decrease the susceptibility to viral respiratory infections, such as COVID-19 and simultaneously enhance vaccine efficiency in infectious disease prevention through the immune system enhancement. Probiotics improve the gut microbiota and the immune system via regulating the innate system response and production of anti-inflammatory cytokines. Moreover, treatment with probiotics contributes to the intestinal homeostasis restitution under antibiotic pressure and decreasing the risk of secondary infections due to viral respiratory infections. Probiotics present varied performances in different conditions; thus, promoting their efficacy through combining with supplements (prebiotics, postbiotics, nutraceuticals, berberine, curcumin, lactoferrin, minerals, and vitamins) is important. Several supplements reported to enhance the probiotics’ efficacy and their mechanisms as well as probiotics related patents are summarized in this review. Using nanotechnology and microencapsulation techniques can also improve probiotics efficiency.
Conclusion: Given the global challenge of COVID-19, probiotic/prebiotic and following nutritional guidelines should be regarded seriously. Additionally, their role as an adjuvant in vaccination for immune response augmentation needs attention.
COVID-19, SARS-CoV-2, gut microbiome, microbiota, lung infection, probiotics, prebiotics, nutraceutical.
Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Department of Medical Biotechnology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Department of Parasitology and Mycology, Shiraz University of Medical Sciences, Shiraz, Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, School of Engineering, Faculty of Science and Engineering, The University of Waikato, Hamilton, Epilepsy Research Center, Shiraz University of Medical Sciences, Shiraz, Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz